diff options
Diffstat (limited to 'src/logging.h')
| -rw-r--r-- | src/logging.h | 37 |
1 files changed, 28 insertions, 9 deletions
diff --git a/src/logging.h b/src/logging.h index 75cd5353c0..a2caef51a8 100644 --- a/src/logging.h +++ b/src/logging.h @@ -39,7 +39,7 @@ namespace BCLog { HTTP = (1 << 3), BENCH = (1 << 4), ZMQ = (1 << 5), - DB = (1 << 6), + WALLETDB = (1 << 6), RPC = (1 << 7), ESTIMATEFEE = (1 << 8), ADDRMAN = (1 << 9), @@ -77,6 +77,9 @@ namespace BCLog { std::string LogTimestampStr(const std::string& str); + /** Slots that connect to the print signal */ + std::list<std::function<void(const std::string&)>> m_print_callbacks /* GUARDED_BY(m_cs) */ {}; + public: bool m_print_to_console = false; bool m_print_to_file = false; @@ -95,7 +98,22 @@ namespace BCLog { bool Enabled() const { std::lock_guard<std::mutex> scoped_lock(m_cs); - return m_buffering || m_print_to_console || m_print_to_file; + return m_buffering || m_print_to_console || m_print_to_file || !m_print_callbacks.empty(); + } + + /** Connect a slot to the print signal and return the connection */ + std::list<std::function<void(const std::string&)>>::iterator PushBackCallback(std::function<void(const std::string&)> fun) + { + std::lock_guard<std::mutex> scoped_lock(m_cs); + m_print_callbacks.push_back(std::move(fun)); + return --m_print_callbacks.end(); + } + + /** Delete a connection */ + void DeleteCallback(std::list<std::function<void(const std::string&)>>::iterator it) + { + std::lock_guard<std::mutex> scoped_lock(m_cs); + m_print_callbacks.erase(it); } /** Start logging (and flush all buffered messages) */ @@ -155,12 +173,13 @@ static inline void LogPrintf(const char* fmt, const Args&... args) } } -template <typename... Args> -static inline void LogPrint(const BCLog::LogFlags& category, const Args&... args) -{ - if (LogAcceptCategory((category))) { - LogPrintf(args...); - } -} +// Use a macro instead of a function for conditional logging to prevent +// evaluating arguments when logging for the category is not enabled. +#define LogPrint(category, ...) \ + do { \ + if (LogAcceptCategory((category))) { \ + LogPrintf(__VA_ARGS__); \ + } \ + } while (0) #endif // BITCOIN_LOGGING_H |